Installation & Configuration Manual
22 Blocking Lock Operation
Blocking Lock operation and the Authorized Setting operation of a Blocking Lock is
supported by the SPC intrusion panel.
22.1 Blocking Lock
A Blocking Lock is a mechanical lock which is mounted into a door in addition to
the normal lock and is used to set and unset the intrusion system. SPC support
normal Blocking Lock devices (Blockschloss 1) and also the Bosch Blockschloss,
Sigmalock Plus, E4.03 device (Blockschloss 2).
Depending on the kind of Blocking Lock, a signal is needed to enable locking and
unlocking the lock i.e. the Blocking Lock can only be locked and the system set if
the signal Ready to Set is available from the control panel. This is controlled by a
magnetic switch.
The operation of a Blocking Lock is as follows:
1. If there is no open zone, pending alarm or pending fault in the area, the area is
ready to set and the Ready to Set signal is sent from the panel.
2. If the Blocking Lock device is then locked, the Blockschloss 1/2 output is
activated.
3. Following the corresponding change on the Keyarm input type, the respective
area is set.
4. The Setting Ack output is activated for 3 seconds to signal a successful setting
of the area. Blockschloss 1 output is deactivated when the system is set.
Blockschloss 2 stays activated when the system is set.
5. If the Blocking Lock is unlocked, the Keyarm input is switched to the unset
state (closed).
6. Following the change on the Keyarm input type, the area is unset. Blockschloss
1 is deactivated if the area is ready to set while Blockschloss 2 is activated if
the area is ready to set.
No open zone,
pending alarm or
pending fault
Ready to Set
Keyarm
Blocking
Device
Locked
Area Set
Blockschloss 1/2
Setting Ack
Fullset Done
Panel
Input
Output
Output
Output
Output
Blocking Lock
Setting Start
3 secs
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